This is a feature cast, an episode of The Command Line Podcast.
In the intro, some thoughts on the loss of a friend.
There is no listener feedback this week.
There is no hacker word of the week this week.
The feature this week is a Hacking 101 on speed and the practice of performance tuning. I mention my previous Inner Chapters on complexity and debugging though I referred to it incorrectly as trouble shooting or problem solving. I also refer to Wikipedia's entry of Big O notation, specifically the orders of common functions section.